What Causes Tooth Sensitivity and How to Treat It

I often speak with patients who tell me they experience quick, sharp pain when enjoying hot or cold foods, and I understand how frustrating and concerning it can be. Tooth sensitivity can affect anyone at any stage of life, and it often comes on suddenly.
• Common triggers include hot drinks, cold treats, and even sugary or acidic foods.
• In many cases, sensitivity can be minimized through proper at-home care and preventive steps.
• Professional treatments and evaluations can address underlying causes to help prevent future discomfort.

My View on the Root Causes of Tooth Sensitivity

I see tooth sensitivity as a signal from our teeth that something deeper may be going on—my belief is that it’s not just the temperature or type of food causing the pain, but the exposure of the sensitive inner layers beneath the enamel. Cavities, gum recession, and worn enamel can all expose these inner layers, making them more vulnerable to external stimuli.

Sometimes, brushing too aggressively or using abrasive toothpaste can physically wear down the protective outer layer. This thin enamel allows triggers like hot, cold, or sweet foods to reach the small openings, called tubules, that lead to the tooth’s nerves. Over time, even dietary habits high in acidic foods and drinks can soften enamel and gums, further exposing the sensitive parts of a tooth.

I’ve found that other contributing factors to sensitivity can include teeth grinding (bruxism) and cracked teeth. The force exerted during grinding weakens the enamel, while cracks in a tooth can expose the nerve. By examining my patients’ teeth and discussing their daily habits, I often uncover these specific causes that lead to sensitivity.

How I Diagnose and Assess Sensitive Teeth in Patients

When patients come in to my practice at 49 East Avenue South, I start by listening closely to their description of when they feel pain and how strong it is. This conversation helps me understand their lifestyle—things like diet, brushing habits, and whether they clench or grind their teeth.

I employ visual exams and gentle probing during checkups to identify signs of gum recession, worn enamel, or tooth decay. I also pay attention to existing fillings, crowns, or restorations that might be contributing to sensitivity due to leaks or fit issues.

In some cases, I recommend dental X-rays or other imaging to pinpoint fractures or decay hidden beneath the surface. These details guide me in developing a personalized plan to address each patient’s unique situation.

My Treatment Strategies to Help Relieve Tooth Sensitivity

I place a strong emphasis on teaching proper brushing techniques and encouraging patients to use a soft-bristled brush with gentle strokes. A desensitizing toothpaste specifically formulated for sensitive teeth can help block nerve pathways over time, decreasing discomfort.

If the case involves more advanced enamel wear or gum recession, I may recommend protective treatments such as fluoride varnishes or bonding procedures. By applying a thin coating of bonding material over exposed areas, I can shield the tooth from outside triggers, thus providing effective relief.

For more severe sensitivity, I explore whether bruxism, excessive decay, or damage could be contributing factors. In these instances, I may suggest wearing a custom-fitted night guard, placing a filling or crown on the affected tooth, or addressing gum issues with a specialist to help prevent further recession.

Is tooth sensitivity always a sign of decay?
Tooth sensitivity can be caused by decay, but it’s not the only reason. Gum recession, enamel erosion, or cracked teeth can also lead to sensitivity without any active cavities.

Will a desensitizing toothpaste completely solve the problem?
Desensitizing toothpaste can provide relief by helping block the pain signals in your tooth’s nerves, but it may not fully solve severe or underlying causes. A proper evaluation can ensure a more comprehensive approach.

Does grinding my teeth at night contribute to sensitivity?
Yes, grinding wears down the enamel, exposing the underlying dentin and leading to sensitive teeth. A custom night guard can help protect your teeth from the damaging effects of grinding.

How can I prevent my gums from receding further?
Gentle brushing techniques, a soft-bristled toothbrush, and regular dental checkups can help maintain healthy gums. Addressing any early gum issues, such as inflammation, can prevent further recession.

Are there any foods or drinks I should avoid to reduce sensitivity?
Highly acidic foods or drinks, like citrus and soda, can weaken enamel over time. Moderation and rinsing your mouth with water after consumption can help protect your teeth.

Can tooth sensitivity be permanent?
In most cases, sensitivity can be treated and managed effectively. By identifying the cause and following a tailored treatment plan, it can often be reversed or significantly reduced.

How often should I see a dentist for sensitive teeth?
Regular checkups every six months are recommended, but if discomfort worsens, scheduling an earlier visit can help address the problem sooner.

Will a filling or crown stop the pain completely?
If sensitivity is due to significant damage or decay, a filling or crown can protect the inner layers of the tooth and often eliminate pain. However, a thorough examination is needed to determine the best course of action.

For more information on tooth sensitivity and other dental health topics, I recommend visiting the Ontario Dental Association at https://weence.com/ the Ontario Ministry of Health at https://weence.com/ or the Canadian Dental Association at https://weence.com/ These websites provide reliable advice and guidelines tailored to Ontario and Canadian residents.

I encourage you to call 905-529-2164 if you have any further questions or would like to schedule a consultation at my practice. I’m always here to help you find relief and maintain a healthier, more comfortable smile.